Improvement in machines for rolling logs



UNITED STATES JOHN TORRENT, OF MUSKEGON, MICHIGAN.

IMPROVEMENT IN MACHINES FOR ROLLING LOGS.

Specification forming part of Letters Patent No. 117,017, dated July 11,1871.

To all whom it may concern A Be it known that I, JOHN TORRENT, ofMuskegon, in the county of Muskegon and in the State of Michigan, haveinvented an Improved Log- Rolling Machine 5 and do hereby declare thatthe following description, taken in connection with the accompanyingdrawing hereinafter referred to, forms afull and exact specification ofthe same, wherein I have set forth the nature and principles of my saidimprovement, by which my invention may be distinguished from others of asimilar class,'together with such parts as I claim and desire to secureby Letters Patent.

My invention relates to that class of machines which is used for thepurpose of rotating logs upon mill-carriages; and the nature thereofconsists in certain modifications in the details and improvements in theconstruction of the same, hereinafter described and shown.

In the accompanying drawing forming a part of this speciication, Figurel is a perspective view, and Fig. 2 a longitudinal vertical section.

The construction,operation, and arrangement of the various parts of myinvention are described as follows:

In the drawing referred to, A designates a mill-carriage of the ordinaryform. B has reference to the guide-plate through which passes asegmental lifting-piece, C, provided with teeth, the upper sides ofwhich are horizontal and the lower edges angular, so that when the saidsegment is -rotated in an upwardl direction they will catch or take intothe surface of the log. The said segmental lifting-piece is attached, bymeans of the connecting-rod D, to the crank E, which has its bearings inthe hangers F in such amanner that a longitudinal as well as verticalmovement may be imparted to the same, in order to enable it to movebackward and forward and adjust itself to the size of the log to berotated upon the carriage, and to permit the teeth to release themselvesand pass clear from the log. Attached to the said radial arm orconnectingrod D is the bracket G, which supports the swivel-pulley H,and attached to the lower side of the guide-plate B is the iXed slreaveI. A chain or rope, K, is made fast to the, guide-plate, and leadsthrough the swivel-pulley H over the Xed sheave I to the drum orchain-barrel L, which is connected by friction-pulleys (not shown) withthe power of the mill.

The operation of the machine is obvious from the foregoing descriptionof the mechanism thereof.

Then it is desired to rotate a log, power is applied to the segmentallifting-piece, the mechanism of the drum-pulleys and chain, and the sameis lifted upward and forced against the surface of the log, which itcauses to revolve. When the power is withdrawn the crank E allows thesaid segmental piece to fall back into its original position.

Having thus described the construction and operation of my invention,and in what manner the same may be formed, I will indicate what I claim,and desire-to secure by Letters Patent in the following clause-that isto say,

I claim- The arrangement and combination of toothed segment, radialconnecting-rod, crank, swivelpulley, fixed sheave, chain and chain-drum,when operating together as and for the purpose described.

In testimony that I claim the foregoing I have hereunto set myhand this17 th day of April, 1871.

JOHN TORRENT.

Witnesses EDWIN POTTER, DAVID MGLAUGHLIN.

